Hello Sir, @Indranil: Thank you, as you indicated, koha-conf.xml is traceable at /etc/koha/sites/<instance name>/koha-conf.xml. My actual problem is: Firstly I added one RECORD with 3 items along with Dewey Number. Later I added 10 items to the same RECORD, after adding many such records in to the koha db, Next I tried to run, sudo koha-rebuild-zebra --full -v instancename Still, I can not see, Dewey number is not reflecting for 10 items which are added later to the same record. Next I tried for ./rebuild_zebra.pl -run-as-root -b -r -a and got following error: unable to locate Koha configuration file koha-conf.xml at /usr/share/koha/lib/C4/Context.pm line 372. ( for this I got answer from Mr. Indranil) and other sources, redirected me to copy and paste the koha-conf.xml file from /etc/koha/sites/<Instance Name>/koha-conf.xml to /etc/koha/ directory. Please advice me what might be causing this? since everything is being done by packages? click here to view my problem: (click here) History: Installed koha 3.10 on Ubuntu 12.04.3 LTS (GNU/Linux 3.5.0-47-generic i686) via packages method and later upgraded to 3.14.